It's used on melting more than one metallic material to joint by melting solders and attaching to each other. Solder as the most significant joint material is a plumb alloy. The most widely used solder alloys are tin/plumb alloys. • Sn 64 Pb 36 : Melting temperature 181 °C • Sn 63 Pb 37 : Melting temperature 183 °C • Sn 60 Pb 40 : Melting temperature 184 °C • Sn 50 Pb 50 : Melting temperature 185 °C Physical Specifications Sold in 25kg packages. Application Fields There are 50% of tin and 50%of plumb in the widest used solder. Solder is used in automobile industry at soldering the radiators, and can ad electronic industries. The real solder is % 64 Sn-36 Pb alloy and melts at 181°C. If it's desired to melt easier, they are alloyed with % 60 Sn-% 40 Pb. The advantages of solder compared to welding are: • different metals can be attached • allows high production speeds • needs less power ad temperature • attachment points that are not reachable with welding can be soldered. • less the equipment, material, working costs